code: def load(self, config, *args, **kwargs):
      annotation_style = config.get(
          "annotation_style", self.dataset_name
      )
      if annotation_style == "textcaps":
          self.dataset_class = TextCapsDataset
  
      dataset = super().load(config, *args, **kwargs)
      dataset.dataset_name = self.dataset_name
      return dataset
  
file_path: mmf/mmf/datasets/builders/coco/builder.py
imports: from mmf.common.registry import registry
  from mmf.datasets.builders.coco.dataset import COCODataset
  from mmf.datasets.builders.textcaps.dataset import TextCapsDataset
  from mmf.datasets.builders.vqa2 import VQA2Builder
label_desc: Use image node_id 4 for calling the COCOBuilder obj's underlying member method code with example usage: obj.load(config) and returns: dataset